Competent Person Schemes UK 2026 — How Trades Self-Certify Building Regs Work

What Is a Competent Person Scheme?

The Building Regulations set minimum standards for the safety, energy efficiency and structural soundness of building work in England and Wales. Some work — replacing windows, certain electrical work, installing a heat-producing appliance — is "notifiable", meaning the local authority building control department legally has to be informed so it can be checked.

The traditional route is to submit a building notice (or full plans), pay building control a fee, and have an inspector visit to sign off the work. That is fine for a one-off, but for a trade doing the same notifiable work every week it would mean a fee and a visit on every single job. The Competent Person Scheme was introduced in 2002 to fix exactly that problem.

When you register with an approved CPS, the scheme has independently assessed that you are competent to do a defined type of work to the required standard. That lets you self-certify that your work complies — there's no need to notify building control in advance. Instead, after the job, the scheme notifies the local authority on your behalf and issues a Building Regulations compliance certificate to the homeowner. That certificate is the proof the work was done legally, and it's the document a buyer's solicitor will ask for when the property is sold.

Which Trades and Works Are Covered

Different schemes cover different types of work, and several schemes often compete to register the same trade. The table below shows the main areas of notifiable work and the schemes most commonly associated with them. Treat the scheme names as examples — competition between providers means there is usually more than one option, and you should check current scope directly with each scheme before joining.

Gas is the odd one out. Gas Safe registration is not an optional Competent Person Scheme you choose to join — by law, anyone carrying out gas work for a business must be on the Gas Safe Register, full stop. But it works on the same self-certification principle: a Gas Safe registered engineer self-certifies that notifiable gas work meets the Building Regulations and issues the relevant certificate, rather than building control inspecting every boiler swap.

The Benefits of Registering

For a trade doing notifiable work regularly, the case for joining a scheme is usually overwhelming. The main benefits:

• No per-job building control fees. You stop paying a building notice fee on every notifiable job, which on its own often covers the cost of scheme membership several times over across a year.
• Faster jobs. No waiting for a building control inspector to visit and sign off before the customer can use the work. You self-certify and move on.
• The compliance certificate reassures customers. The Building Regs certificate the scheme issues is tangible proof the work was done legally. It matters at resale, and customers increasingly know to ask for it.
• It often wins work. Many homeowners, letting agents and main contractors will only use registered installers. Being on a recognised scheme is frequently a tick-box requirement just to quote.
• It supports wider accreditation. Scheme membership feeds into TrustMark registration and is usually a prerequisite for offering insurance-backed guarantees and deposit protection on your work.

What's Involved in Joining

Schemes don't hand out registration on payment of a fee — the whole point is that membership signals assessed competence. Expect the process to include:

• Qualification and competence checks. You'll need to evidence relevant qualifications (for example a Level 3 electrical qualification and the current wiring regulations for Part P work) and demonstrate practical competence in the work you want to certify.
• An initial on-site assessment. An assessor typically visits to inspect recent completed work and check your tools, test equipment and documentation against the scheme's technical standards.
• Ongoing surveillance. Registration isn't one and done. Schemes carry out annual (or periodic) surveillance audits — reviewing paperwork and reassessing sample jobs — to confirm you're still working to standard.
• Public liability insurance and calibrated equipment. Most schemes require evidence of insurance and that test instruments are calibrated and in date.

If you fail an assessment you're usually given a corrective period and a re-visit rather than being refused outright, but persistent non-compliance can lead to suspension or removal from the register.

Rough Cost of Registration

Fees vary by scheme, by the number of work types you register for, and from year to year — so treat the figures below as approximate ranges to budget against rather than exact quotes. Always confirm current pricing with the scheme directly.

• Initial registration / assessment: roughly £300–£600 for the first year including the on-site assessment, depending on scheme and scope.
• Annual renewal: commonly £300–£550 a year to stay registered and cover surveillance.
• Additional work categories: adding more types of notifiable work to your registration usually adds incrementally to the fee.
• Gas Safe: registration and renewal here are a separate, legally mandated cost rather than an optional scheme fee.

Set against the per-job building control fees you'd otherwise pay, plus the work you win by being registered, most active trades find the annual cost pays for itself quickly.

The Legal Duty — and What Happens If You're Not Registered

This is the part that catches people out. Doing notifiable work and neither notifying building control nor self-certifying through a scheme is a breach of the Building Regulations. It is the legal duty that matters, not the scheme membership in isolation — the scheme is simply the most efficient way to discharge that duty.

Local authorities have enforcement powers. They can require non-compliant work to be altered or removed, and serve enforcement notices. Unregistered work also creates a problem that surfaces later: when the homeowner comes to sell, the missing Building Regs compliance certificate shows up in conveyancing searches and can stall or sink a sale.

If you're not registered with a relevant scheme, the lawful options are to submit a building notice (or full plans) to building control before the work and pay for inspection, or — where notifiable work has already been done without notification — to apply to building control for a regularisation certificate retrospectively. Regularisation usually means exposing or testing the work so it can be inspected, paying a fee, and accepting that the council may require remedial work. It is slower, more expensive and more uncertain than self-certifying in the first place.

A Note on Devolution

Everything above describes the regime in England and Wales, where Competent Person Schemes operate under the Building Regulations for those nations. Scotland and Northern Ireland have their own arrangements. Scotland operates a building standards system with building warrants and Certificates of Construction Compliance through Approved Certifiers, while Northern Ireland has its own Building Regulations and building control process. If you work across borders, don't assume an England-and-Wales scheme registration automatically covers you elsewhere — check the local requirements.

Should You Register? Guidance for a Growing Trade

For most trades doing notifiable work, the question isn't really whether to register but which scheme to choose. A few pointers for a business that's scaling up:

• Register if you do notifiable work regularly. The fees are a fixed annual cost; the more notifiable jobs you do, the more the per-job savings and won work outweigh them.
• Match the scheme to the work. If you span several trades — say electrical and heating — look for a scheme that can register you for multiple work types under one membership to cut admin.
• Factor in the marketing value. Recognisable scheme logos and a searchable register listing are sales assets. Many customers find installers through the schemes' own "find a registered installer" directories.
• Keep the certificates flowing. Make issuing the compliance certificate part of closing every job. A trail of certificates protects you and reassures customers.

As you grow, knowing which of your marketing channels — the scheme directory, Google, referrals, local ads — actually turn into paid, certified jobs becomes just as important as the certification itself. That's exactly the kind of thing Trade2Base helps trade businesses track, so you can put your money where the work is actually coming from.

Quick Reference: Competent Person Schemes UK 2026